– Who is this app for?

This app is for people who have at least a basic understanding of a foreign language and who want to drastically improve it and bring it to the next level.

Reading books is a great and efficient way to quickly gain and expand your vocabulary and grasp language structure and patterns.

It is a truly incredible way, used and loved by many people around the world. I can confirm it as I learned English by reading books myself and met many people who also did so.

– About the app:

The app allows you to read books and translate unfamiliar words with a single tap. It is infinitely more convenient than copying every word to a separate translator app.

No need to make word cards with the words you don't know and put any effort in memorizing them. Just keep reading and whenever you encounter an unfamiliar word - translate it. After doing so for about 3-5 times you will memorize the word.

You can look up a word's definition using one of the dictionaries available in iOS and translate whole sentences and bigger pieces of text as well.

It is also possible to save translations as favourites. It can be useful for some rare or fascinating words.

The app itself is quality made and boasts a simple easy-to-use interface, high stability and performance. It has all the necessary features and settings for comfortable reading.

– Available languages:

You can use the app to learn the following languages:
English, Español, Français, Русский, Deutsch, Italiano, Nederlands, Ελληνικά, Dansk, Norsk, Polski, Português, Türkçe, Svenska, Slovenčina, Suomi, Čeština, Magyar, Română, Bahasa Indonesia, Hindi, עִבְרִית, 中文, 한국어, 日本語, ภาษาไทย, العربية.

– Supported e-book formats:

At the moment, PDF, EPUB, FB2 and TXT e-books are supported.
The app is in active development and new formats are being added.

– Recommendations:

Even if you have just basic language skills start reading simple children's books now and after only a week(!) of consistent reading you will be amazed by the progress you've made. After a few months, or even sooner, you will be able to read fluently barely using the translation feature.

As a further step, аfter you feel like you can read freely enough, start watching movies in the language you learn with subtitles in the same language. It is an incredible way to improve your speech perception ability.

You will be surprised, but the words, phrases and language patterns you memorized will allow you to communicate with natives without any problem.
If you think about it, that is what children do when they learn their first language - they simply absorb language around them and then reproduce it. You can do it too.

- Summary

Today this incredible app makes it possible to easily master a language and it costs even less than one hour lesson with a private teacher. Don't miss it.

Knowing more languages gives you a vast variety of new opportunities which can significantly improve your life. If you can start learning now - do it. You will thank yourself later :)

– Support

If you have a question or an issue with the app please email me at

Also feel free to send me your comments and suggestions. Together we can make it perfect :)

What’s New

Version 7.7

- Offline translation
- Optimization for iOS 13

Ratings and Reviews

4.6 out of 5
55 Ratings

55 Ratings

Mrh3333 ,

Perfect for Learning a Foreign Language/French

I was looking for a replacement for my Kindle Paperwhite, which allows me to keep a list of the words and definitions that I look up. This App does exactly that for my books in pdf and ePub format. Thank you, developers!

Коловрат ,


Exactly what I have been looking for. This app helps reading books in foreign languages by showing you translation and definition of every unfamiliar word and allows you to save those words for later learning. Nice design/animations and understandable UX/UI. Great job

Ppuppappuppa ,

The most useful language learning app for me

Bukus is exactly the app I was looking for.
Switching between dictionary app (which needs internet everytime) and the viewer
was quite irritating.
Also the user interface is high quality and can see it is improving every time updated.
Highly recommend to people who is struggling to learn new language and reading book w foreign languages!

Nice job! 👍🏽


38.6 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese

Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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